QDNL Participations — Full Portfolio
14 tracked investments · listed companies and verified rows first
EuQlid builds magnetic imaging technology that uses quantum defects in diamond to non-invasively map buried electrical currents and identify connectivity defects in materials and devices.
Deep TechQuantum ComputingSemiconductors
Sanjive Agarwala(CEO and Co-Founder)inDavid Glenn(CTO and Co-Founder)inRonald Walsworth(Co-Founder)
Co-investorsQuantonation
Modem is an AI teammate for product and engineering teams that clusters and prioritizes customer feedback, bug reports, and feature requests from support and chat tools, then creates tickets, delegates tasks to coding agents, and generates user-tailored release notes.
AI & Machine LearningDeveloper ToolsSaaS
Ben Vinegar(Founder)in
Co-investorsInovia CapitalAccelDelft Enterprises B.V.QuantonationSpeedinvest
OrangeQS provides automated testing and characterization equipment and software for quantum chips with several to hundreds of qubits.
Deep TechHardwareQuantum Computing
Co-investorsCottonwood Technology FundEuropean Innovation Council Fund
Q*Bird develops quantum key distribution (QKD) devices and networks for secure data communication using quantum technology, serving commercial and industrial clients including financial institutions, telecommunications companies, and data centers.
CybersecurityEnterprise SoftwareHardwareQuantum ComputingDelft, NL
Ingrid Romijn(CEO)inRemon Berrevoets(CTIO)inJoshua Slater(CTO)in
Co-investorsCottonwood Technology Fund
Qblox develops industrial-grade control electronics for quantum computing systems, enabling error correction and scalable deployment in production environments.
Deep TechEnterprise SoftwareHardwareQuantum Computing
Co-investorsBootstrap EuropeQuantonation
QphoX develops optical control systems and cryogenic switch controllers for quantum computing and research, enabling RF signal delivery to extreme cryogenic environments while minimizing thermal loss.
Deep TechHardwareQuantum Computing
Co-investorsQAI VenturesQuantonation
QTSense develops quantum sensors operating at the nanoscale to detect subtle biological signals for research and diagnostic applications.
AI & Machine LearningBiotechDeep TechMedical Devices
Deepak Veeregowda(CEO)inSeyyed Taheri(CTO)Romana Schirhagl(CSO)inHoang Nguyen(COO)in
Co-investorsCottonwood Technology Fund
QuantWare manufactures travelling wave parametric amplifiers (TWPA) for quantum computing systems, enabling multiplexed qubit readout with superior signal-to-noise performance.
Deep TechHardwareQuantum ComputingSemiconductors
Matt Rijlaarsdam(Co-Founder & CEO)in
Co-investorsFORWARD.one
QuantWare designs and manufactures quantum processors (QPUs) for industrial applications.
Deep TechHardwareQuantum ComputingSemiconductorsNetherlands, NL
Matt Rijlaarsdam(Co-Founder & CEO)in
Co-investorsGraduate EntrepreneurIn-Q-TelRotripETF PartnersFORWARD.oneIntel Capital
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
DiffraqtionESGQuantum ElementsRhonexumSiC Systems
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.